The **Edit Modes** and **Cursor Modes** controls define the behavior of
the main canvas and the different functions the cursor can have. There
are three Edit Modes in the drop-down menu: **Slide**, **Ripple**, and **Lock**. To the right of the Smart button are the
Cursor Modes:
- **Smart Mode** (shortcut *"Y"*)
-**Grab Mode** (shortcut *"G"*)
-**Range Mode** (shortcut *"R"*)
-**Cut Mode** (shortcut *"C"*)
-**Stretch Mode** (shortcut *"T"*)
-**Audition Mode**
-**Draw Mode** (shortcut *"D"*)
-**Internal Edit Mode** (shortcut *"E"*)
Most of them are discussed in the **Working With Regions**
chapter. The last two are discussed in the **Using Automation** chapter.
The **Smart Mode** is actually a combination of Grab Mode and Range Mode. When enabled, the mouse behaves as if it is in "Range Mode" in the upper half of a region, and in "Grab Mode" in the
The **Snap Options** menu controls the **Grid**, **Grid Points** and
**Edit Point**. Please see the chapters on **Setting Up the Meter**,
**Using Ranges** and **Working With Regions** for more details.
### Zoom Options
In between **Cursor Modes** and **Snap Options** are the **Zoom
Options**. Here you can define the behavior of zooming operations. You
have standard **Zoom In** and **Zoom Out** buttons, plus a third called
**Zoom to Session** (useful for having a quick overview of your entire
session: it zooms it to fit the available space on the screen).
{{% notice tip %}}
Use the shortcuts **=** (the equal sign on your main keyboard) for zooming, and
**-** (the dash key on your main keyboard) for zooming out.
{{% /notice %}}
The drop-down menu controls the **Zoom Focus**. It defines the focus
point of zooming operations. Try zooming in and out
with a different Zoom Focus each time. For example, choosing Playhead
will cause zoom to behave in relation to the position of the
Playhead. Mouse will take your current mouse position as the reference,
and so on.
The following drop-down menu and the last two buttons control "vertical zoom." They allow you to
expand and shrink all tracks and busses vertically. Use the drop-down menu to choose a specific number of tracks you want to fit on the screen. Use the buttons to shrink or expand all tracks (or only selected tracks, if a selection is made).
### Auxiliary Controls
For further information on other buttons and displays on the main
interface, please refer to the [Ardour Manual](http://manual.ardour.org/ "Ardour Manual").
Main Canvas
-----------
The main canvas is just below the top rows of controls described above.
It basically comprises the **Rulers**, the space where **Tracks** and
**Busses** are displayed, and a **Summary** view at the bottom.
At the very top of Ardour's Editor Window (to the right) you will find useful information such as sample rate of the session, available recording time, and DSP use.
### Rulers
Right-click on the names of rulers and you will see a menu with all the
possible rulers at your disposition. You may uncheck rulers that you
don't need in order to save screen space. More information on these
operations can be found in the **Setting up the Timeline** and **Setting
